In Chapter 4 the book says:
[quote]Because you will frequently need objects that you are not retaining, many classes have class methods that return autoreleased objects. NSString, for example, has stringWithFormat:.
In looking at the documentation for “stringWithFormat:” and “initWithFormat:” I don’t see anything about whether what they return is autoreleased. How can I know, from the documentation, whether what is returned is autoreleased or not?